CVE-2026-2354— WordPress Swiss Toolkit For WP 任意文件上传漏洞

Swiss Toolkit For WP <= 1.4.6 - Authenticated (Author+) Arbitrary File Upload via upload_extension_files()

The Swiss Toolkit For WP plugin for WordPress is vulnerable to arbitrary file upload due to a flawed file type validation bypass in the `upload_extension_files()` function in all versions up to, and including, 1.4.6. The `upload_extension_files()` function hooks into WordPress's `wp_check_filetype_and_ext` filter and uses `strpos()` to check if a filename contains a configured extension string, rather than verifying the actual file extension. This makes it possible for authenticated attackers, with Author-level access and above, to upload arbitrary files (including PHP) on the affected site's server which may make remote code execution possible, granted the "Enhanced Multi-Format Image Support" feature is enabled with at least one extension (e.g., avif) in the allowed formats.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

危险类型文件的不加限制上传

WordPress Swiss Toolkit For WP 任意文件上传漏洞

WordPress Swiss Toolkit For WP是WordPress基金会的一款CMS插件工具。 WordPress Swiss Toolkit For WP 1.4.6及之前版本存在任意文件上传漏洞，该漏洞源于`upload_extension_files()`函数中文件类型验证存在缺陷，使用`strpos()`检查文件名是否包含扩展字符串而非验证实际文件扩展名，可能导致通过身份验证的攻击者上传任意文件，从而可能实现远程代码执行。

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